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    block plate on older style exhaust manifolds

    On my 1979 Mercruiser 260hp 5.7L 350 serial number 5432443 with end risers manifolds when I took the elbow off the manifold it had a metal plate in between the two with a gasket on each side...I only expected to see a gasket. Can someone tell me why it blocks off the one water jacket and if I...
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    New total remodel 1979 Wright Through hull exhaust

    Hey guys I just got me a new boat project and I think it's a great candidate for a through hull exhaust, but I don't really know all that much about installing them other than the hour or so research I just did. So...any advice on where to get the parts, installation, or so on. The motor I am...
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    I think I water locked my engine...?

    Hi everyone, I rebuilt this Mercruiser 5.7L 350, I don't have the serial number for it since it was originally an automotive motor but all of the accessories, e.i. manifolds, carb, dist came off a 1979 Mercruiser 5.7L. Anywho, I was running it on the ground after the rebuild, all was going well...
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    engine harness

    moved
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    1975 merc 140 i/o

    Sorry mods...I just realized I posted in the wrong area.
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